What is interim payments?

Hello, I've just registered VAT and got approved, but on the document it said I have to may the interim payments, like each month 1200GBP, but I didn't have such a mount of business yet, and plus isn't there a VAT free threshold？ thanks in advance, Kai Wang

Hi. Can you confirm if you are on Annual Accounting. Please see below: Annual accounting (VAT Notice 732)  . Thank you .